Cardiac Cycle Efficiency and Vasoactive-Inotropic Support After Cardiac Surgery (CCE-VIS)
The Value of Cardiac Cycle Efficiency After Cardiopulmonary Bypass in Predicting Vasoactive-Inotropic Support Requirement (VIS) in the First 24 Hours in Open-Heart Surgery: A Prospective Observational Cohort Study
This study aims to find out whether Cardiac Cycle Efficiency (CCE), measured with the MostCare Up monitor 30 minutes after coming off cardiopulmonary bypass, can predict which adult patients will need high doses of vasoactive and inotropic drugs (maximum Vasoactive-Inotropic Score ≥15) in the first 24 hours after open-heart surgery. No additional procedures or treatments will be applied; data will be collected from the routinely placed arterial catheter.
연구 개요
상세 설명
After open-heart surgery with cardiopulmonary bypass (CPB), many patients develop myocardial depression and vasoplegia and require vasoactive and inotropic support. High support requirement, quantified by the Vasoactive-Inotropic Score (VIS), is associated with prolonged mechanical ventilation, acute kidney injury, longer ICU stay and increased mortality. Reliable early hemodynamic markers to identify these patients are lacking.
Cardiac Cycle Efficiency (CCE), derived from arterial waveform analysis by the Pressure Recording Analytical Method (MostCare Up), reflects the energetic efficiency of the cardiovascular system, integrating contractility, arterial load and ventricular-arterial coupling. Lower CCE values have been associated with higher inotropic requirement in children after cardiac surgery, but data in adults are lacking.
In this single-center prospective observational study, hemodynamic parameters will be recorded at six time points: after induction, before CPB, 15 and 30 minutes after separation from CPB, end of surgery, and ICU admission. Patients will be classified according to maximum VIS in the first 24 postoperative hours (<15 vs ≥15). The predictive performance of CCE at 30 minutes after CPB will be assessed by ROC analysis. Associations of CCE with lactate, duration of mechanical ventilation, ICU and hospital stay, acute kidney injury and in-hospital mortality will also be evaluated.
연구 유형
등록 (추정된)
연락처 및 위치
연구 장소
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Bursa
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Nilufer, Bursa, 터키 (Türkiye), 16110
- 모병
- Bursa City Hospital
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연락하다:
- emre ulusoy
- 전화번호: 05379492799
- 이메일: emreulusoy36@gmail.com
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참여기준
자격 기준
공부할 수 있는 나이
건강한 자원 봉사자를 받아들입니다
연구 대상 성별
샘플링 방법
연구 인구
Adult patients undergoing elective open-heart surgery with cardiopulmonary bypass at Bursa City Hospital.
설명
Inclusion Criteria:
- Age 18 years or older
- ASA physical status II-IV
- Elective coronary artery bypass grafting, valve surgery, or combined CABG and valve surgery with cardiopulmonary bypass
- Written informed consent
Exclusion Criteria:
- Emergency surgery
- Preoperative mechanical circulatory support (IABP, ECMO, Impella, etc.)
- Permanent pacemaker dependency
- Severe arrhythmia (uncontrolled atrial fibrillation, ventricular arrhythmia, etc.)
- Redo cardiac surgery
- Aortic dissection
- Pregnancy
- Unreliable arterial pressure waveform
- Need for IABP, ECMO, or temporary epicardial pacing during weaning from bypass or during surgery
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 관찰 모델: COHORT
- 시간 관점: PROSPECTIVE
코호트 및 개입
그룹/코호트 |
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Adult Open-Heart Surgery Patients
Adult patients undergoing elective coronary artery bypass grafting, valve surgery, or combined surgery with cardiopulmonary bypass. Hemodynamic parameters including Cardiac Cycle Efficiency will be recorded with the MostCare Up system via the routinely placed radial arterial catheter. No study-specific intervention will be applied. |
연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Predictive Performance of CCE for High Vasoactive-Inotropic Support
기간: First 24 hours after ICU admission
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Area under the ROC curve of Cardiac Cycle Efficiency measured 30 minutes after separation from cardiopulmonary bypass for predicting maximum Vasoactive-Inotropic Score (VISmax) ≥15. VISmax is the highest hourly VIS during the first 24 hours after ICU admission. |
First 24 hours after ICU admission
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Predictive Performance of Early CCE (T3 and Mean T3-T4)
기간: First 24 hours after ICU admission
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ROC analysis of CCE at 15 minutes after bypass and mean of 15- and 30-minute CCE values for predicting VISmax ≥15. |
First 24 hours after ICU admission
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Vasoactive-Inotropic Score
기간: 24 hours
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VIS at ICU admission, 6 hours and 24 hours after ICU admission. |
24 hours
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Serum Lactate and Lactate Clearance
기간: 24 hours
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Lactate (mmol/L) at ICU admission, 6 and 24 hours; lactate clearance in the first 6 hours (%). |
24 hours
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In-Hospital Mortality
기간: Until hospital discharge, up to 30 days
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All-cause death during hospital stay. |
Until hospital discharge, up to 30 days
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Duration of Mechanical Ventilation
기간: Until hospital discharge, up to 30 days
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Time from ICU admission to extubation (hours) and need for reintubation. |
Until hospital discharge, up to 30 days
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연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- BSH0003
약물 및 장치 정보, 연구 문서
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